The main course
The introduction given to human beings about themselves by Īśāvāsya Upanishad is that who we are in Pure Consciousness and;
Pure Consciousness is all-pervasive, beyond the coming and going, absolute radiant and self-effulgent, unembodied, Boundaryless, Whole (beyond the subtle body), woundless, muscleless, having no incompletion with the body. Consciousness is the ever pure space devoid of the dirt of ignorance, and is untouched by the delusion of incompletion; Consciousness is the all-knowing seer of all–past, present and future, the lord of all minds (manīṣī), Consciousness transcends all beings (paribhūḥ). Consciousness is self-existent by Itself with Its independent will and intelligence, having no cause for Its happening. It is Pure Consciousness, that from time eternal, has enriched the ages and each being, by ordaining desirable responsibilities, artha onto them, as per their nature and space, and their actions and results thereof.
This is the main course. Each phrase has to be savoured and made into living energy in our system. Let us take one of the statements and look at it a little closer.